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Li X, Ren N, Wang Z, Wang Y, Hu Y, Hu W, Gu J, Hong W, Zhang Z, Wang C. Clinical and Genetic Characteristics of Hypophosphatasia in Chinese Adults. Genes (Basel) 2023; 14:genes14040922. [PMID: 37107680 PMCID: PMC10137706 DOI: 10.3390/genes14040922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/06/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Hypophosphatasia (HPP) is an inherited disease caused by ALPL mutation, resulting in decreased alkaline phosphatase (ALP) activity and damage to bone and tooth mineralization. The clinical symptoms of adult HPP are variable, making diagnosis challenging. This study aims to clarify the clinical and genetic characteristics of HPP in Chinese adults. There were 19 patients, including 1 with childhood-onset and 18 with adult-onset HPP. The median age was 62 (32-74) years and 16 female patients were involved. Common symptoms included musculoskeletal symptoms (12/19), dental problems (8/19), fractures (7/19), and fatigue (6/19). Nine patients (47.4%) were misdiagnosed with osteoporosis and six received anti-resorptive treatment. The average serum ALP level was 29.1 (14-53) U/L and 94.7% (18/19) of patients had ALP levels below 40 U/L. Genetic analysis found 14 ALPL mutations, including three novel mutations-c.511C>G (p.His171Ala), c.782C>A (p.Pro261Gln), and 1399A>G (p.Met467Val). The symptoms of two patients with compound heterozygous mutations were more severe than those with heterozygous mutations. Our study summarized the clinical characteristics of adult HPP patients in the Chinese population, expanded the spectrum of pathogenic mutations, and deepened clinicians' understanding of this neglected disease.
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Affiliation(s)
- Xiang Li
- Shanghai Clinical Research Center of Bone Disease & Department of Osteoporosis and Bone Diseases, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Na Ren
- Shanghai Clinical Research Center of Bone Disease & Department of Osteoporosis and Bone Diseases, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Ziyuan Wang
- Shanghai Clinical Research Center of Bone Disease & Department of Osteoporosis and Bone Diseases, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Ya Wang
- Shanghai Clinical Research Center of Bone Disease & Department of Osteoporosis and Bone Diseases, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Yunqiu Hu
- Shanghai Clinical Research Center of Bone Disease & Department of Osteoporosis and Bone Diseases, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Weiwei Hu
- Shanghai Clinical Research Center of Bone Disease & Department of Osteoporosis and Bone Diseases, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Jiemei Gu
- Shanghai Clinical Research Center of Bone Disease & Department of Osteoporosis and Bone Diseases, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Wei Hong
- Department of Osteoporosis & Shanghai Key Laboratory of Clinical Geriatric Medicine, Huadong Hospital, Fudan University, Shanghai 200040, China
| | - Zhenlin Zhang
- Clinical Research Center, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Chun Wang
- Shanghai Clinical Research Center of Bone Disease & Department of Osteoporosis and Bone Diseases, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
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Kim I, Noh ES, Kim MS, Jang JH, Jeon TY, Choi HW, Cho SY. Six-year clinical outcomes of enzyme replacement therapy for perinatal lethal and infantile hypophosphatasia in Korea: Two case reports. Medicine (Baltimore) 2023; 102:e32800. [PMID: 36820543 PMCID: PMC9907957 DOI: 10.1097/md.0000000000032800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
INTRODUCTION Hypophosphatasia (HPP) is a genetic disease caused by loss-of-function mutations in ALPL, which encodes tissue-nonspecific alkaline phosphatase (ALP). Early diagnosis and treatment of perinatal and infantile HPP are important because of their high mortality rates. Enzyme replacement therapy (ERT) using human recombinant tissue-nonspecific ALP asfotase alfa was introduced in Korea in 2016. We report the first experience of ERT over 6 years for perinatal lethal and infantile HPP in Korea. PATIENT CONCERNS The first patient was a 6-week-old Korean boy with a failure to thrive. The second patient was an 8-day-old Korean-Uzbek body with generalized tonic-clonic seizure with cyanosis. DIAGNOSES HPP was suspected in both patients because of the very low level of ALP activity and rachitic findings on radiographs, and the disease was confirmed by Sanger sequencing of the ALPL gene. INTERVENTION The first patient with infantile HPP started ERT at 21 months of age and the second patient with perinatal HPP started ERT at 30 days of age. Both patients received asfotase alfa (2 mg/kg 3 times per week subcutaneously, adjusted to 3 mg/kg 3 times per week if required) for 6 years. OUTCOMES After 6 years of ERT, radiographic findings and growth standard deviation scores improved in both patients. The second patient showed no evidence of rickets after 3 years of ERT. Mechanical respiratory support and supplemental oxygen were not required after 4.5 years of treatment in the first patient and at 2 months after treatment in the second patient. CONCLUSION Among the 2 patients, the patient who started ERT early had a much better prognosis despite a more severe initial clinical presentation. Our results suggest that early diagnosis and prompt treatment play an important role in improving long-term prognosis and avoiding morbidity and premature mortality in patients with perinatal and infantile HPP.
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Affiliation(s)
- Insung Kim
- Department of Public Health Administration, Asan City Health Center, Asan, Korea
| | - Eu-Seon Noh
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Min-Sun Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ja-Hyun Jang
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Tae Yeon Jeon
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hae Won Choi
- Department of Orthodontics, The Institute of Oral Health Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sung Yoon Cho
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- * Correspondence: Sung Yoon Cho, Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea (e-mail: )
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Mikulčić M, Tabrizi-Wizsy NG, Bernhart EM, Asslaber M, Trummer C, Windischhofer W, Sattler W, Malle E, Hrzenjak A. 15d-PGJ 2 Promotes ROS-Dependent Activation of MAPK-Induced Early Apoptosis in Osteosarcoma Cell In Vitro and in an Ex Ovo CAM Assay. Int J Mol Sci 2021; 22:ijms222111760. [PMID: 34769194 PMCID: PMC8583949 DOI: 10.3390/ijms222111760] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 02/07/2023] Open
Abstract
Osteosarcoma (OS) is the most common type of bone tumor, and has limited therapy options. 15-Deoxy-Δ12,14-prostaglandin J2 (15d-PGJ2) has striking anti-tumor effects in various tumors. Here, we investigated molecular mechanisms that mediate anti-tumor effects of 15d-PGJ2 in different OS cell lines. Human U2-OS and Saos-2 cells were treated with 15d-PGJ2 and cell survival was measured by MTT assay. Cell proliferation and motility were investigated by scratch assay, the tumorigenic capacity by colony forming assay. Intracellular ROS was estimated by H2DCFDA. Activation of MAPKs and cytoprotective proteins was detected by immunoblotting. Apoptosis was detected by immunoblotting and Annexin V/PI staining. The ex ovo CAM model was used to study growth capability of grafted 15d-PGJ2-treated OS cells, followed by immunohistochemistry with hematoxylin/eosin and Ki-67. 15d-PGJ2 substantially decreased cell viability, colony formation and wound closure capability of OS cells. Non-malignant human osteoblast was less affected by 15d-PGJ2. 15d-PGJ2 induced rapid intracellular ROS production and time-dependent activation of MAPKs (pERK1/2, pJNK and pp38). Tempol efficiently inhibited 15d-PGJ2-induced ERK1/2 activation, while N-acetylcystein and pyrrolidine dithiocarbamate were less effective. Early but weak activation of cytoprotective proteins was overrun by induction of apoptosis. A structural analogue, 9,10-dihydro-15d-PGJ2, did not show toxic effects in OS cells. In the CAM model, we grafted OS tumors with U2-OS, Saos-2 and MG-63 cells. 15d-PGJ2 treatment resulted in significant growth inhibition, diminished tumor tissue density, and reduced tumor cell proliferation for all cell lines. Our in vitro and CAM data suggest 15d-PGJ2 as a promising natural compound to interfere with OS tumor growth.
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Affiliation(s)
- Mateja Mikulčić
- Department of Internal Medicine, Division of Pulmonology, Medical University of Graz, 8036 Graz, Austria;
| | - Nassim Ghaffari Tabrizi-Wizsy
- Otto Loewi Research Center, Division of Immunology and Pathophysiology, Medical University of Graz, 8010 Graz, Austria;
| | - Eva M. Bernhart
- Gottfried Schatz Research Center, Division of Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria; (E.M.B.); (C.T.); (W.S.); (E.M.)
| | - Martin Asslaber
- Diagnostic and Research Institute of Pathology, Medical University of Graz, 8010 Graz, Austria;
| | - Christopher Trummer
- Gottfried Schatz Research Center, Division of Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria; (E.M.B.); (C.T.); (W.S.); (E.M.)
- Department of Pediatrics and Adolescence Medicine, Medical University of Graz, 8036 Graz, Austria;
| | - Werner Windischhofer
- Department of Pediatrics and Adolescence Medicine, Medical University of Graz, 8036 Graz, Austria;
| | - Wolfgang Sattler
- Gottfried Schatz Research Center, Division of Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria; (E.M.B.); (C.T.); (W.S.); (E.M.)
| | - Ernst Malle
- Gottfried Schatz Research Center, Division of Molecular Biology and Biochemistry, Medical University of Graz, 8010 Graz, Austria; (E.M.B.); (C.T.); (W.S.); (E.M.)
| | - Andelko Hrzenjak
- Department of Internal Medicine, Division of Pulmonology, Medical University of Graz, 8036 Graz, Austria;
- Ludwig Boltzmann Institute for Lung Vascular Research, Medical University of Graz, 8010 Graz, Austria
- Correspondence: ; Tel.: +43-316-385-73860
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Association of ALPL variants with serum alkaline phosphatase and bone traits in the general Japanese population: The Nagahama Study. J Hum Genet 2019; 65:337-343. [PMID: 31857675 DOI: 10.1038/s10038-019-0712-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/28/2019] [Accepted: 12/12/2019] [Indexed: 12/21/2022]
Abstract
Although alkaline phosphatase (ALP) activity is relatively low in carriers of recessive type hypophosphatasia (HPP), most are asymptomatic and therefore do not undergo medical evaluations. We analyzed the association of ALP-encoding ALPL variants with serum ALP and bone traits in the general Japanese population. Study participants (n = 9671) were from the Nagahama Study, which was a longitudinal cohort study of an apparently healthy general Japanese population. ALPL variants were analyzed by whole-genome sequencing or TaqMan probe assays using DNA extracted from peripheral blood samples. The speed of sound in calcaneal bone was assessed by quantitative ultrasound (QUS) and used as surrogate measures of bone mineral density. We identified 13 ALPL variants. Minor allele frequencies of three variants were higher than expected. Variant c.529G > A has been reported as a possible pathogenic variant for adult type HPP. Variants c.979C > T and c.1559delT are reported as pathogenic variants for perinatal severe HPP or infantile HPP. The allele frequencies of c.529G > A, c.979C > T, and c.1559delT were 0.0107, 0.0040, and 0.0014, respectively. Serum ALP activity was significantly lower and differed among the three variants (P < 0.001), as well as between individuals with and without any of the three variants (P < 0.001). Serum ALP activity was inversely associated with QUS values, although no direct association was observed between the ALPL variants and QUS values. An association between serum ALP activity and QUS was confirmed; however, we failed to detect an association between ALPL variants and bone traits in the general Japanese population.
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Uday S, Matsumura T, Saraff V, Saito S, Orimo H, Högler W. Tissue non-specific alkaline phosphatase activity and mineralization capacity of bi-allelic mutations from severe perinatal and asymptomatic hypophosphatasia phenotypes: Results from an in vitro mutagenesis model. Bone 2019; 127:9-16. [PMID: 31146036 DOI: 10.1016/j.bone.2019.05.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 05/24/2019] [Accepted: 05/25/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Hypophosphatasia (HPP) is an inherited metabolic bone disease characterized by reduced mineralization due to mutations in the tissue non-specific alkaline phosphatase (ALPL) gene. HPP is clinically variable with extensive allelic heterogeneity in the ALPL gene. We report the findings of in vitro functional studies following site-directed mutagenesis in bi-allelic mutations causing extreme clinical phenotypes; severe perinatal and asymptomatic HPP. AIMS Elucidate genotype-phenotype correlation using in vitro functional studies and 3 dimensional (3D) ALP modelling. METHODS Clinical, biochemical and radiological features were recorded in two children with extreme HPP phenotypes: Subject 1 (S1): Perinatal HPP with compound heterozygous mutations (c.110T>C; c.532T>C); Subject 2 (S2): asymptomatic with homozygous missense mutation (c.715G>T). Plasmids created for mutants 1 c.110T>C (L37P), 2 c.532T>C (Y178H) and 3 c.715G>T (D239Y) using in vitro mutagenesis were transfected into human osteosarcoma (U2OS) cells and compared to wildtype (WT) and mock cDNA. ALP activity was measured using enzyme kinetics with p-nitrophenylphosphate. Mineral deposition was evaluated photometrically with Alizarin Red S staining after culture with mineralization medium. Western blot analysis was performed to identify the mature type protein expression (80 kDa). Mutations were located on a 3D ALP model. Co-transfection was performed to identify dominant negative effect of the mutants. RESULTS Phenotype: S1, had typical perinatal HPP phenotype at birth; extremely under-mineralized bones and pulmonary hypoplasia. S2, diagnosed incidentally by laboratory tests at 4 years, had normal growth, development, dentition and radiology. All S2's siblings (3 homozygous, 1 heterozygous) were asymptomatic. All subjects had typical biochemical features of HPP (low ALP, high serum pyridoxal-5'-phosphate), except the heterozygous sibling (normal ALP). Functional assay: Mutants 1 and 2 demonstrated negligible ALP activity and mineralization was 7.9% and 9.3% of WT, respectively. Mutant 3 demonstrated about 50% ALP activity and 15.5% mineralization of WT. On Western blot analysis, mutants 1 and 2 were detected as faint bands indicating reduced expression and mutant 3 was expressed as mature form protein with 50% of WT expression. Mutant 1 was located near the Glycosylphosphatidylinositol anchor, 2 at the core structure of the ALP protein and 3 at the periphery of the protein structure. Co-transfection did not reveal a dominant negative effect in any of the mutants. CONCLUSION Our findings expand the current knowledge of functional effect of individual mutations and the importance of their location in the ALP structure.
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Affiliation(s)
- Suma Uday
- Department of Endocrinology and Diabetes, Birmingham Women's and Children's Hospital, Birmingham, UK; Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Tomohiro Matsumura
- Department of Biochemistry and Molecular Biology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Vrinda Saraff
- Department of Endocrinology and Diabetes, Birmingham Women's and Children's Hospital, Birmingham, UK
| | - Shiho Saito
- Department of Biochemistry and Molecular Biology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Hideo Orimo
- Department of Biochemistry and Molecular Biology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Wolfgang Högler
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK; Department of Paediatrics and Adolescent Medicine, Johannes Kepler University, Linz, Austria.
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Zhou H, Jiao G, Dong M, Chi H, Wang H, Wu W, Liu H, Ren S, Kong M, Li C, Zhang L, Chen Y. Orthosilicic Acid Accelerates Bone Formation in Human Osteoblast-Like Cells Through the PI3K-Akt-mTOR Pathway. Biol Trace Elem Res 2019; 190:327-335. [PMID: 30421162 DOI: 10.1007/s12011-018-1574-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 11/07/2018] [Indexed: 12/28/2022]
Abstract
Silicon is one of the essential trace elements in the human body; the deficiency of which may lead to bone diseases. Numerous animal experiments have shown that an appropriate increase in the intake of silicon is beneficial to enhancing bone density and toughness to prevent osteoporosis. However, the molecular mechanisms of the silicon-mediated osteogenesis process have not been sufficiently clarified. In this study, we determined the possible osteogenesis-related mechanisms of orthosilicic acid at a molecular level. We detected the relevant pathway and osteogenic indicators by immunofluorescence (IF), Western blot, alkaline phosphatase (ALP) staining (using 5-bromo-4-chloro-3-indolyl phosphate/nitro blue tetrazolium [BCIP/NBT]), ALP enzyme labeling method, osteocalcin (OCN), and N-terminal propeptide of type 1 procollagen (P1NP) enzyme-linked immunosorbent assay (ELISA). We found that orthosilicic acid is capable of enhancing the expression of phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K), phospho-protein kinase B (P-Akt), phospho-mammalian target of rapamycin (P-mTOR), and related osteogenic markers (runt-related transcription factor 2 [RUNX2], type I collagen [COL1], ALP, OCN, and P1NP). However, with the addition of PI3K-Akt-mTOR pathway-specific inhibitor LY294002, the expression of PI3K, P-Akt, P-mTOR, RUNX2, COL1, ALP, OCN, and P1NP decreased. The results indicated that the PI3K-Akt-mTOR pathway played a positive regulatory role in the process of orthosilicic acid-mediated osteogenesis in vitro.
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Affiliation(s)
- Hongming Zhou
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
- Department of Emergency Trauma Surgery, Linyi Central Hospital, Linyi, Shandong Province, China
| | - Guangjun Jiao
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Meng Dong
- Department of Orthopedics, Zibo Central Hospital, Zibo, Shandong Province, China
| | - Hai Chi
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Hongliang Wang
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Wenliang Wu
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Haichun Liu
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Shanwu Ren
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Meng Kong
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Ci Li
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Lu Zhang
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China
| | - Yunzhen Chen
- Department of Orthopedics, Qilu Hospital of Shandong University and Spine and Spinal Cord Disease Research Center, Shandong University, Jinan, Shandong, China.
- Department of Orthopedics, Qilu Hospital of Shandong University, No. 107, Wen Hua Xi Road, Ji'nan, 250012, Shandong Province, China.
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Jin C, He J, Zou J, Xuan W, Fu T, Wang R, Tan W. Phosphorylated lipid-conjugated oligonucleotide selectively anchors on cell membranes with high alkaline phosphatase expression. Nat Commun 2019; 10:2704. [PMID: 31221964 PMCID: PMC6586821 DOI: 10.1038/s41467-019-10639-6] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 05/03/2019] [Indexed: 11/12/2022] Open
Abstract
Attachment of lipid tails to oligonucleotides has emerged as a powerful technology in constructing cell membrane-anchorable nucleic acid-based probes. In practice, however, conventional lipid-conjugated oligonucleotides fail to distinguish among different cell membranes. Herein, a phosphorylated lipid-conjugated oligonucleotide (DNA-lipid-P) is reported for alkaline phosphatase (ALP)-dependent cell membrane adhesion. In the absence of ALP, DNA-lipid-P with its poor hydrophobicity shows only weak interaction with cell membrane. However, in the presence of the highly expressed plasma membrane-associated ALP, DNA-lipid-P is converted to lipid-conjugated oligonucleotide (DNA-lipid) by enzymatic dephosphorylation. As a result of such conversion, the generated DNA-lipid has greater hydrophobicity than DNA-lipid-P and is thus able to insert into cell membranes in situ. Accordingly, DNA-lipid-P enables selective anchoring on cell membranes with elevated ALP level. Since elevated ALP level is a critical index of some diseases and even cancers, DNA-lipid-P holds promise for cell membrane engineering and disease diagnostics at the molecular level. Membrane-anchored DNA probes have been used to study molecular interactions and control cell assembly, but are not selective for different cell membranes. Here the authors develop a lipid-conjugated oligonucleotide for alkaline phosphatase-dependent cell membrane anchorage and use it to distinguish different cancer cells.
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Affiliation(s)
- Cheng Jin
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Life Sciences, Aptamer Engineering Center of Hunan Province, Hunan University, 410082, Changsha, Hunan, China.,Institute of Molecular Medicine (IMM), Renji Hospital, Shanghai Jiao Tong University School of Medicine, and College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China
| | - Jiaxuan He
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Life Sciences, Aptamer Engineering Center of Hunan Province, Hunan University, 410082, Changsha, Hunan, China
| | - Jianmei Zou
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Life Sciences, Aptamer Engineering Center of Hunan Province, Hunan University, 410082, Changsha, Hunan, China
| | - Wenjing Xuan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Life Sciences, Aptamer Engineering Center of Hunan Province, Hunan University, 410082, Changsha, Hunan, China
| | - Ting Fu
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Life Sciences, Aptamer Engineering Center of Hunan Province, Hunan University, 410082, Changsha, Hunan, China
| | - Ruowen Wang
- Institute of Molecular Medicine (IMM), Renji Hospital, Shanghai Jiao Tong University School of Medicine, and College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Life Sciences, Aptamer Engineering Center of Hunan Province, Hunan University, 410082, Changsha, Hunan, China. .,Institute of Molecular Medicine (IMM), Renji Hospital, Shanghai Jiao Tong University School of Medicine, and College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 200240, Shanghai, China. .,Department of Chemistry and Department of Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611-7200, USA.
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Liu HW, Li K, Hu XX, Zhu L, Rong Q, Liu Y, Zhang XB, Hasserodt J, Qu FL, Tan W. In Situ Localization of Enzyme Activity in Live Cells by a Molecular Probe Releasing a Precipitating Fluorochrome. Angew Chem Int Ed Engl 2017; 56:11788-11792. [DOI: 10.1002/anie.201705747] [Citation(s) in RCA: 136] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/07/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Hong-Wen Liu
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Ke Li
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Xiao-Xiao Hu
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Longmin Zhu
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Qiming Rong
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Yongchao Liu
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Xiao-Bing Zhang
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Jens Hasserodt
- Laboratoire de Chimie; UCBL; CNRS; University of Lyon; Ecole Normale Superieure de Lyon; 46 allee d'Italie 69364 Lyon Cedex 07 France
| | - Feng-Li Qu
- The Key Laboratory of Life-Organic Analysis; College of Chemistry and Chemical Engineering; Qufu Normal University; Qufu Shandong 273165 P. R. China
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
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Liu HW, Li K, Hu XX, Zhu L, Rong Q, Liu Y, Zhang XB, Hasserodt J, Qu FL, Tan W. In Situ Localization of Enzyme Activity in Live Cells by a Molecular Probe Releasing a Precipitating Fluorochrome. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705747] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Hong-Wen Liu
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Ke Li
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Xiao-Xiao Hu
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Longmin Zhu
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Qiming Rong
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Yongchao Liu
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Xiao-Bing Zhang
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
| | - Jens Hasserodt
- Laboratoire de Chimie; UCBL; CNRS; University of Lyon; Ecole Normale Superieure de Lyon; 46 allee d'Italie 69364 Lyon Cedex 07 France
| | - Feng-Li Qu
- The Key Laboratory of Life-Organic Analysis; College of Chemistry and Chemical Engineering; Qufu Normal University; Qufu Shandong 273165 P. R. China
| | - Weihong Tan
- Molecular Science and Biomedicine Laboratory(MBL); State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; College of Biology; Hunan University; Changsha 410082 P. R. China
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10
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Dong M, Jiao G, Liu H, Wu W, Li S, Wang Q, Xu D, Li X, Liu H, Chen Y. Biological Silicon Stimulates Collagen Type 1 and Osteocalcin Synthesis in Human Osteoblast-Like Cells Through the BMP-2/Smad/RUNX2 Signaling Pathway. Biol Trace Elem Res 2016; 173:306-15. [PMID: 27025722 DOI: 10.1007/s12011-016-0686-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Accepted: 03/22/2016] [Indexed: 11/28/2022]
Abstract
Silicon is essential for bone formation. A low-silicon diet leads to bone defects, and numerous animal models have demonstrated that silicon supplementation increases bone mineral density (BMD) and reduces bone fragility. However, the exact mechanism of this action has not been characterized. In this study, we aimed to determine the role of biological silicon in the induction of osteoblast differentiation and the possible underlying mechanism. We examined whether orthosilicic acid promotes collagen type 1 (COL-1) and osteocalcin synthesis through the bone morphogenetic protein-2 (BMP-2)/Smad1/5/runt-related transcription factor 2 (RUNX2) signaling pathway by investigating its effect in vitro at several concentrations on COL-1 and osteocalcin synthesis in human osteosarcoma cell lines (MG-63 and U2-OS). The expression of relevant proteins was detected by Western blotting following exposure to noggin, an inhibitor of BMP-2. In MG-63 cells, immunofluorescence methods were applied to detect changes in the expression of BMP-2, phosphorylated Smad1/5 (P-Smad1/5), and RUNX2. Furthermore, rat bone mesenchymal stem cells (BMSCs) were used to determine the effect of orthosilicic acid on osteogenic differentiation. Exposure to 10 μM orthosilicic acid markedly increased the expression of BMP-2, P-Smad1/5, RUNX2, COL-1, and osteocalcin in osteosarcoma cell lines. Enhanced ALP activity and the formation of mineralized nodules were also observed under these conditions. Furthermore, preconditioning with noggin inhibited the silicon-induced upregulation of P-Smad1/5, RUNX2, and COL-1 expression. In conclusion, the BMP-2/Smad1/5/RUNX2 signaling pathway participates in the silicon-mediated induction of COL-1 and osteocalcin synthesis, and orthosilicic acid promotes the osteogenic differentiation of rat BMSCs.
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Affiliation(s)
- Meng Dong
- Department of Orthopedics, Qilu Hospital of Shandong University, No. 107, Wen Hua Xi Road, Ji'nan, Shandong Province, 250012, China
| | - Guangjun Jiao
- Department of Orthopedics, Qilu Hospital of Shandong University, No. 107, Wen Hua Xi Road, Ji'nan, Shandong Province, 250012, China
| | - Haichun Liu
- Department of Orthopedics, Qilu Hospital of Shandong University, No. 107, Wen Hua Xi Road, Ji'nan, Shandong Province, 250012, China
| | - Wenliang Wu
- Department of Orthopedics, Qilu Hospital of Shandong University, No. 107, Wen Hua Xi Road, Ji'nan, Shandong Province, 250012, China
| | - Shangzhi Li
- Department of Orthopedics, Qilu Hospital of Shandong University, No. 107, Wen Hua Xi Road, Ji'nan, Shandong Province, 250012, China
| | - Qingshi Wang
- Department of Orthopedics, Qilu Hospital of Shandong University, No. 107, Wen Hua Xi Road, Ji'nan, Shandong Province, 250012, China
| | - Daxia Xu
- Department of Orthopedics, Qilu Hospital of Shandong University, No. 107, Wen Hua Xi Road, Ji'nan, Shandong Province, 250012, China
| | - Xiaofeng Li
- Department of Orthopedics, Qilu Hospital of Shandong University, No. 107, Wen Hua Xi Road, Ji'nan, Shandong Province, 250012, China
| | - Huan Liu
- Department of Orthopedics, Qilu Hospital of Shandong University, No. 107, Wen Hua Xi Road, Ji'nan, Shandong Province, 250012, China
| | - Yunzhen Chen
- Department of Orthopedics, Qilu Hospital of Shandong University, No. 107, Wen Hua Xi Road, Ji'nan, Shandong Province, 250012, China.
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11
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Catauro M, Papale F, Sapio L, Naviglio S. Biological influence of Ca/P ratio on calcium phosphate coatings by sol-gel processing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 65:188-93. [PMID: 27157742 DOI: 10.1016/j.msec.2016.03.110] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 03/11/2016] [Accepted: 03/23/2016] [Indexed: 12/13/2022]
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12
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Abstract
Hypophosphatasia (HPP) is an inherited systemic bone disease that is characterized by bone hypomineralization. HPP is classified into six forms according to the age of onset and severity as perinatal (lethal), perinatal benign, infantile, childhood, adult, and odontohypophosphatasia. The causative gene of the disease is the ALPL gene that encodes tissue-nonspecific alkaline phosphatase (TNAP). TNAP is expressed ubiquitously, and its physiological role is apparent in bone mineralization. A defect in bone mineralization can manifest in several ways, including rickets or osteomalacia in HPP patients. Patients with severe forms suffer from respiratory failure because of hypoplastic chest, which is the main cause of death. They sometimes present with seizures due to a defect in vitamin B6 metabolism resulting from the lack of alkaline phosphatase activity in neuronal cells, which is also lethal. Patients with a mild form of the disease exhibit rickets or osteomalacia and a functional defect of exercise. Odontohypophosphatasia shows only dental manifestations. To date, 302 mutations in the ALPL gene have been reported, mainly single-nucleotide substitutions, and the relationships between phenotype and genotype have been partially elucidated. An established treatment for HPP was not available until the recent development of enzyme replacement therapy. The first successful enzyme replacement therapy in model mice using a modified human TNAP protein (asfotase alfa) was reported in 2008, and subsequently success in patients with severe form of the disease was reported in 2012. In 2015, asfotase alfa was approved in Japan in July, followed by in the EU and Canada in August, and then by the US Food and Drug Administration in the USA in October. It is expected that therapy with asfotase alfa will drastically change treatments and prognosis of HPP.
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Affiliation(s)
- Hideo Orimo
- Division of Metabolism and Nutrition, Department of Biochemistry and Molecular Biology, Nippon Medical School, Tokyo, Japan
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13
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Burmester A, Luthringer B, Willumeit R, Feyerabend F. Comparison of the reaction of bone-derived cells to enhanced MgCl2-salt concentrations. BIOMATTER 2015; 4:e967616. [PMID: 25482335 PMCID: PMC4578555 DOI: 10.4161/21592527.2014.967616] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Magnesium-based implants exhibit various advantages such as biodegradability and potential for enhanced in vivo bone formation. However, the cellular mechanisms behind this possible osteoconductivity remain unclear. To determine whether high local magnesium concentrations can be osteoconductive and exclude other environmental factors that occur during the degradation of magnesium implants, magnesium salt (MgCl2) was used as a model system. Because cell lines are preferred targets in studies of non-degradable implant materials, we performed a comparative study of 3 osteosarcoma-derived cell lines (MG63, SaoS2 and U2OS) with primary human osteoblasts. The correlation among cell count, viability, cell size and several MgCl2 concentrations was used to examine the influence of magnesium on proliferation in vitro. Moreover, bone metabolism alterations during proliferation were investigated by analyzing the expression of genes involved in osteogenesis. It was observed that for all cell types, the cell count decreases at concentrations above 10 mM MgCl2. However, detailed analysis showed that MgCl2 has a relevant but very diverse influence on proliferation and bone metabolism, depending on the cell type. Only for primary cells was a clear stimulating effect observed. Therefore, reliable results demonstrating the osteoconductivity of magnesium implants can only be achieved with primary osteoblasts.
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Key Words
- ALP, Alkaline phosphatase
- BSP, Bone sialoprotein
- Cbfa1, Runt-related transcription factor 2
- Col, Collagen
- GAPDH, Glyceraldehyde 3-phosphate dehydrogenase
- HPSE, Heparanase
- MG63
- OB, osteoblasts
- OC, Osteocalcin
- OPG, Osteoprotegerin
- OPN, Osteopontin
- PCR, Polymerase chain reaction
- RANKL, Receptor Activator of NF-κB Ligand
- SaoS2
- U2OS
- gene expression
- magnesium
- osteoblasts
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Affiliation(s)
- Anna Burmester
- a Helmholtz-Zentrum Geesthacht; Institute of Materials Research; Structural Research on Macromolecules ; Geesthacht , Germany
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14
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Jiang L, Cui Y, Luan J, Zhou X, Zhou X, Han J. A comparative proteomics study on matrix vesicles of osteoblast-like Saos-2 and U2-OS cells. Intractable Rare Dis Res 2013; 2:59-62. [PMID: 25343104 PMCID: PMC4204581 DOI: 10.5582/irdr.2013.v2.2.59] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 05/16/2013] [Accepted: 05/17/2013] [Indexed: 01/15/2023] Open
Abstract
Matrix vesicles (MVs) play an important role in the initial stage of the process of bone mineralization, and are involved in multiple rare skeletal diseases with pathological mineralization or calcification. The aim of the study was to compare the proteomic profiling of osteoblast-like cells with and without mineralization ability (Saos-2 and U2-OS), and to identify novel mineralization-associated MV proteins. MVs were extracted using ExoQuick solution from mineralization-induced Saos-2 and U2-OS cells, and then were validated by transmission electron microscopy. A label-free quantitative proteomic method was used to compare the protein profiling of MVs from Saos-2 and U2-OS cells. Western-blots were used to confirm the expression of MVs proteins identified in proteomic studies. In our proteomic studies, we identified that 89 mineralization-related proteins were significantly up-regulated in Saos-2 MVs compared with U2-OS MVs. We further validated that two MVs proteins, protein kinase C α and ras-related protein Ral-A, were up-regulated in MVs of Saos-2 cells compared to those of U2-OS cells under mineralization-induction. Our findings suggest that protein kinase C α and ras-related protein Ral-A might be involved in bone mineralization as MVs components.
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Affiliation(s)
- Liang Jiang
- Shandong Academy of Medical Sciences, Shandong Medical Biotechnology Center, Key Laboratory for Biotech-Drugs of the Ministry of Health, Ji'nan, Shandong, China
- School of Medicine and Life Sciences, University of Ji'nan-Shandong Academy of Medical Science, Ji'nan, Shandong, China
| | - Yazhou Cui
- Shandong Academy of Medical Sciences, Shandong Medical Biotechnology Center, Key Laboratory for Biotech-Drugs of the Ministry of Health, Ji'nan, Shandong, China
| | - Jing Luan
- Shandong Academy of Medical Sciences, Shandong Medical Biotechnology Center, Key Laboratory for Biotech-Drugs of the Ministry of Health, Ji'nan, Shandong, China
| | - Xiaoyan Zhou
- Shandong Academy of Medical Sciences, Shandong Medical Biotechnology Center, Key Laboratory for Biotech-Drugs of the Ministry of Health, Ji'nan, Shandong, China
| | - Xiaoying Zhou
- Shandong Academy of Medical Sciences, Shandong Medical Biotechnology Center, Key Laboratory for Biotech-Drugs of the Ministry of Health, Ji'nan, Shandong, China
| | - Jinxiang Han
- Shandong Academy of Medical Sciences, Shandong Medical Biotechnology Center, Key Laboratory for Biotech-Drugs of the Ministry of Health, Ji'nan, Shandong, China
- Address correspondence to: Dr. Jinxiang Han, Shandong Academy of Medical Sciences, No. 18877 Jing-shi Road, Ji'nan, 250062, Shandong, China. E-mail:
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Matsumoto T, Miyake K, Yamamoto S, Orimo H, Miyake N, Odagaki Y, Adachi K, Iijima O, Narisawa S, Millán JL, Fukunaga Y, Shimada T. Rescue of severe infantile hypophosphatasia mice by AAV-mediated sustained expression of soluble alkaline phosphatase. Hum Gene Ther 2011; 22:1355-64. [PMID: 21388343 PMCID: PMC3225041 DOI: 10.1089/hum.2010.210] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Accepted: 03/10/2011] [Indexed: 11/12/2022] Open
Abstract
Hypophosphatasia (HPP) is an inherited disease caused by a deficiency of tissue-nonspecific alkaline phosphatase (TNALP). The major symptom of human HPP is hypomineralization, rickets, or osteomalacia, although the clinical severity is highly variable. The phenotypes of TNALP knockout (Akp2(-/-)) mice mimic those of the severe infantile form of HPP. Akp2(-/-) mice appear normal at birth, but they develop growth failure, epileptic seizures, and hypomineralization and die by 20 days of age. Previously, we have shown that the phenotype of Akp2(-/-) mice can be prevented by enzyme replacement of bone-targeted TNALP in which deca-aspartates are linked to the C-terminus of soluble TNALP (TNALP-D10). In the present study, we evaluated the therapeutic effects of adeno-associated virus serotype 8 (AAV8) vectors that express various forms of TNALP, including TNALP-D10, soluble TNALP tagged with the Flag epitopes (TNALP-F), and native glycosylphosphatidylinositol-anchored TNALP (TNALP-N). A single intravenous injection of 5×10(10) vector genomes of AAV8-TNALP-D10 into Akp2(-/-) mice at day 1 resulted in prolonged survival and phenotypic correction. When AAV8-TNALP-F was injected into neonatal Akp2(-/-) mice, they also survived without epileptic seizures. Interestingly, survival effects were observed in some animals treated with AAV8-TNALP-N. All surviving Akp2(-/-) mice showed a healthy appearance and a normal activity with mature bone mineralization on X-rays. These results suggest that sustained alkaline phosphatase activity in plasma is essential and sufficient for the rescue of Akp2(-/-) mice. AAV8-mediated systemic gene therapy appears to be an effective treatment for the infantile form of human HPP.
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Affiliation(s)
- Tae Matsumoto
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Tokyo 113-8602, Japan
- Department of Pediatrics, Nippon Medical School, Tokyo 113-8603, Japan
| | - Koichi Miyake
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Tokyo 113-8602, Japan
- Division of Gene Therapy Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8602, Japan
| | - Seiko Yamamoto
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Tokyo 113-8602, Japan
- Sanford Children's Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - Hideo Orimo
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Tokyo 113-8602, Japan
| | - Noriko Miyake
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Tokyo 113-8602, Japan
- Division of Gene Therapy Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8602, Japan
| | - Yuko Odagaki
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Tokyo 113-8602, Japan
- Division of Gene Therapy Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8602, Japan
| | - Kumi Adachi
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Tokyo 113-8602, Japan
- Division of Gene Therapy Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8602, Japan
| | - Osamu Iijima
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Tokyo 113-8602, Japan
- Division of Gene Therapy Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8602, Japan
| | - Sonoko Narisawa
- Sanford Children's Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | - José Luis Millán
- Sanford Children's Health Research Center, Sanford-Burnham Medical Research Institute, La Jolla, CA 92037
| | | | - Takashi Shimada
- Department of Biochemistry and Molecular Biology, Nippon Medical School, Tokyo 113-8602, Japan
- Division of Gene Therapy Research Center for Advanced Medical Technology, Nippon Medical School, Tokyo 113-8602, Japan
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16
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Abstract
The multiple factors contributing to the pathogenesis of osteoporosis include genetic and environmental factors. Because decrease in bone mineral density (BMD) is the major clinical indicator and a useful quantitative trait, many association and linkage studies of BMD have been conducted. Although the series of studies showed apparently significant associations, the genes have not been found that can be utilized in clinical practice. Several genes identified in robust genome-wide association studies will be the new cutting edge in genetic studies of osteoporosis. Our recent reports of functional single nucleotide polymorphism in the tissue-nonspecific alkaline phosphatase gene and gamma-carboxylase gene are presented in this review to discuss the future prospects in the genetic research of osteoporosis from the point of view of genome-nutrition interaction.
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Affiliation(s)
- Takayuki Hosoi
- Department of Clinical Research and Development, National Center for Geriatrics and Gerontology, Aichi, Japan.
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17
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Orimo H. The Mechanism of Mineralization and the Role of Alkaline Phosphatase in Health and Disease. J NIPPON MED SCH 2010; 77:4-12. [DOI: 10.1272/jnms.77.4] [Citation(s) in RCA: 443] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Hideo Orimo
- Division of Medical and Biological Chemistry, Graduate School of Medicine, Nippon Medical School
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18
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Orimo H, Shimada T. The role of tissue-nonspecific alkaline phosphatase in the phosphate-induced activation of alkaline phosphatase and mineralization in SaOS-2 human osteoblast-like cells. Mol Cell Biochem 2008; 315:51-60. [DOI: 10.1007/s11010-008-9788-3] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2008] [Accepted: 05/06/2008] [Indexed: 11/29/2022]
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